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View Full Version : does anyone have any info on the sport 20 intake or the mazdaspeed exhaust cams.


frostsg
08-16-2002, 01:06 AM
Does anyone know if the mazdaspeed exhaust or sport 20 intake cams make a considerable difference.
Captain KRM P5
08-16-2002, 01:38 AM
installed alone, the cams do not offer very high gains at all, somewhere in the range of 10 horsepower. Installed with pistons and other parts is where there is a difference.
StuttersC
08-16-2002, 02:24 AM
Originally posted by frostsg
Does anyone know if the mazdaspeed exhaust or sport 20 intake cams make a considerable difference.

What are you looking for exactly?? Are you looking for specs or what?
frostsg
08-16-2002, 02:51 AM
specs would help
StuttersC
08-16-2002, 03:02 AM
Check here, under the "Engine Section":

http://web2.airmail.net/emann/protegefaq/

They really aren't the big of a difference over the stock cams. I think the intake has slightly longer duration and the exhaust has slightly longer lift.
dogg
09-22-2002, 04:38 PM
I have had both installed and have noticed ABSOLUTELY NO DIFFERENCE AT ALL ! Some friendly advise, save your money and when you can, get a good quality turbo, thats the route I'm taking.
StuttersC
09-22-2002, 05:39 PM
Originally posted by dogg
I have had both installed and have noticed ABSOLUTELY NO DIFFERENCE AT ALL ! Some friendly advise, save your money and when you can, get a good quality turbo, thats the route I'm taking.

Is this "butt dyno" results?? Hate to say it, but that isn't accurate.

If you have the Sport 20 exhaust cam installed, there won't be a difference because the exhaust cam is the same between the FS-DE and the FS-ZE. Now, if you put the Mazdaspeed exhaust cam in, there would be more of a difference.

Just the intake cam won't yield large gains.